The Ood, Hartnell would laugh and go "I've dealt with you guys just a few weeks back" and they'll go "no you did not. You dealt with our cousins. We gotta giant brain here, that makes us special. XD" Harnell would also poke the Atraxi in the eye.
The Weeping angels, Tom Baker would probably be the reason why they weep. Pertwee would not be afraid to show them good ol' Venusian karate before be warped back in time. That'll show them.
the Vashta Narada, Hartnell would wave his cane at them angrily. They probably wouldn't like his skin and bone tough old man flesh neither.
There really has not been an extreme amount of new creatures in Nu Who. Absorbalof can just sit where he is. I'm not sure any Doctor would be too keen in dealing with the Adipose. The Vampires of Venice and the Carrionites could meet McCoy for good measure I guess. XD
Si-Fy and Fantasy, that is where my heart lies. To Doctor Who and its 18 years of brilliance, still waiting on the 50 yr anniversary!